div class=ts-pagebutton class=gotoPage data-page=1Page 1button div class=ts-imageimg data-url=cdn4-922pdfsistemul-periodic-al-elementelor-sistemul-periodic-structura-sistemuluihtmlpage=1 data-page=1 class=ts-thumb lazyload alt=Page 1: cdn4librisrocdn4librisrouserdocspdf592COR973-135-112-4 922pdf · Sistemul periodic al elementelor Sistemul periodic Structura sistemului periodic Proprietåti fizice generale loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader036vdocumentecomreader036viewer20220818105a79ede87f8b9ab83f8ca417html5thumbnails1jpg width=140 height=200 divdiv